Gas generating composition

Abstract

A gas generating composition is obtained in which an amount of a combustion residue based on a unit amount of a gas generated is reduced. A gas generating composition comprising nitroguanidine, guanidine nitrate or a mixture thereof as a fuel and further an oxidizing agent. The oxidizing agent is a perchloric acid salt, a nitric acid salt or a mixture thereof, and when the oxidizing agent is ammonium perchlorate, a chlorine neutralizer is further incorporated.

1 . A gas generating composition comprising 
 a fuel comprising nitroguanidine, guanidine nitrate, or a mixture thereof, and    an oxidizing agent comprising a perchlorate having an alkali metal or alkaline earth metal cation, a nitrate having an ammonium, alkali metal, or alkaline earth metal cation, or a mixture thereof.    
     
     
         2 . The gas generating composition of  claim 1 , further comprising a chlorine neutralizer.  
     
     
         3 . The gas generating composition of  claim 2 , wherein the chlorine neutralizer is a compound containing a cation selected from the group consisting of alkali metals and alkaline earth metals.  
     
     
         4 . The gas generating composition of  claim 3 , wherein the chlorine neutralizer is a silicic acid salt, an oxalic acid salt, an oxide, a peroxide, a cellulose salt, a salt of tetrazole, a salt of triazole, or a salt of bitetrazole  
     
     
         5 . The gas generating composition of  claim 1 , wherein the content of the fuel is between 35 and 80% by weight and the content of the oxidizing agent is between 65 and 20% by weight.  
     
     
         6 . The gas generating composition of  claim 1 , which further comprises a binder or a combustion catalyst as an additive.  
     
     
         7 . The gas generating composition of  claim 1 , wherein an amount of a combustion residue based on an amount of a gas generated is 12 g/mol or less.  
     
     
         8 . An inflator system comprising the gas generating composition of  claim 1 .  
     
     
         9 . A gas generating method using a gas generated by burning a fuel, in which the gas generating composition of  claim 1  is used as a fuel to decrease an amount of a combustion residue and improve a gas output.